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/*=========================================================================
Program: Visualization Toolkit
Module: $RCSfile: vtkXMLPStructuredDataReader.h,v $
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkXMLPStructuredDataReader - Superclass for parallel structured data XML readers.
// .SECTION Description
// vtkXMLPStructuredDataReader provides functionality common to all
// parallel structured data format readers.
// .SECTION See Also
// vtkXMLPImageDataReader vtkXMLPStructuredGridReader
// vtkXMLPRectilinearGridReader
#ifndef __vtkXMLPStructuredDataReader_h
#define __vtkXMLPStructuredDataReader_h
#include "vtkXMLPDataReader.h"
class vtkExtentSplitter;
class vtkExtentTranslator;
class vtkTableExtentTranslator;
class vtkXMLStructuredDataReader;
class VTK_IO_EXPORT vtkXMLPStructuredDataReader : public vtkXMLPDataReader
{
public:
vtkTypeRevisionMacro(vtkXMLPStructuredDataReader,vtkXMLPDataReader);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Get an extent translator that will create pieces matching the
// input file's piece breakdown. This can be used further down the
// pipeline to prevent reading from outside this process's piece.
// The translator is only valid after an UpdateInformation has been
// called.
virtual vtkExtentTranslator* GetExtentTranslator();
// For the specified port, copy the information this reader sets up in
// SetupOutputInformation to outInfo
virtual void CopyOutputInformation(vtkInformation *outInfo, int port);
protected:
vtkXMLPStructuredDataReader();
~vtkXMLPStructuredDataReader();
vtkIdType GetNumberOfPoints();
vtkIdType GetNumberOfCells();
void CopyArrayForPoints(vtkDataArray* inArray, vtkDataArray* outArray);
void CopyArrayForCells(vtkDataArray* inArray, vtkDataArray* outArray);
virtual void SetOutputExtent(int* extent)=0;
virtual void GetPieceInputExtent(int index, int* extent)=0;
// Pipeline execute data driver. Called by vtkXMLReader.
void ReadXMLData();
int ReadPrimaryElement(vtkXMLDataElement* ePrimary);
void SetupOutputData();
void SetupEmptyOutput();
void SetupPieces(int numPieces);
void DestroyPieces();
int ReadPiece(vtkXMLDataElement* ePiece);
int ReadPieceData();
void CopySubExtent(int* inExtent, int* inDimensions, vtkIdType* inIncrements,
int* outExtent,int* outDimensions,vtkIdType* outIncrements,
int* subExtent, int* subDimensions,
vtkDataArray* inArray, vtkDataArray* outArray);
int ComputePieceSubExtents();
vtkTableExtentTranslator* ExtentTranslator;
vtkExtentSplitter* ExtentSplitter;
// The extent to be updated in the output.
int UpdateExtent[6];
int PointDimensions[3];
vtkIdType PointIncrements[3];
int CellDimensions[3];
vtkIdType CellIncrements[3];
// The extent currently being read from a piece.
int SubExtent[6];
int SubPointDimensions[3];
int SubCellDimensions[3];
int SubPieceExtent[6];
int SubPiecePointDimensions[3];
vtkIdType SubPiecePointIncrements[3];
int SubPieceCellDimensions[3];
vtkIdType SubPieceCellIncrements[3];
// Information per-piece.
int* PieceExtents;
private:
vtkXMLPStructuredDataReader(const vtkXMLPStructuredDataReader&); // Not implemented.
void operator=(const vtkXMLPStructuredDataReader&); // Not implemented.
};
#endif
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